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//! Single-turn driver: takes one user message (plus any clipboard-
//! pasted images), kicks off the initial API request, and hands the
//! response off to [`crate::repl::ResponseHandler`] for the tool loop.
//! Also owns the image-error retry path that strips images from the
//! conversation and retries once before surfacing the failure.
use crate::api::{ImageSource, MessageContentBlock};
use crate::error::{Result, SofosError};
use crate::repl::{Repl, ResponseHandler};
use crate::session::DisplayMessage;
use crate::ui::UI;
use colored::Colorize;
use std::sync::Arc;
use std::time::Instant;
impl Repl {
pub fn process_message(
&mut self,
user_input: &str,
pasted_images: Vec<crate::clipboard::PastedImage>,
) -> Result<()> {
// Record turn start so we can show "Finished in Xs" when the
// model is fully done (after every text reply, tool call, and
// continuation). Steer messages typed mid-turn don't reset
// this — they're folded into the same turn via `SteerBuffer` and
// the same `process_message` call keeps running until the
// agent loop exits.
let turn_start = Instant::now();
let has_pasted_images = !pasted_images.is_empty();
let content_blocks = if has_pasted_images {
let mut blocks: Vec<MessageContentBlock> = Vec::with_capacity(pasted_images.len() + 1);
// Image-before-text ordering matches the recommendation in
// the Anthropic and OpenAI image-input docs.
for pasted in &pasted_images {
blocks.push(MessageContentBlock::Image {
source: ImageSource::Base64 {
media_type: pasted.media_type.clone(),
data: pasted.base64_data.clone(),
},
cache_control: None,
});
}
if !user_input.trim().is_empty() {
blocks.push(MessageContentBlock::Text {
text: user_input.to_string(),
cache_control: None,
});
}
Some(blocks)
} else {
None
};
if let Some(blocks) = content_blocks {
self.session_state.conversation.add_user_with_blocks(blocks);
} else {
self.session_state
.conversation
.add_user_message(user_input.to_string());
}
self.session_state
.display_messages
.push(DisplayMessage::UserMessage {
content: user_input.to_string(),
});
if self.session_state.conversation.needs_compaction() {
// Inner failure paths already surface a warning through
// `UI::print_warning` and fall back to `fallback_trim`,
// so the user is never left without compaction. The
// outer `Err` arm is only reachable from future failure
// modes added to the helper, but log it through tracing
// rather than swallowing it silently.
if let Err(e) = self.compact_conversation(false) {
tracing::warn!(error = %e, "auto-compaction returned an error");
}
}
let initial_request = self.build_initial_request();
let runtime = &self.runtime;
let client_for_retry = self.client.clone();
let response_result: Result<_> = {
let printer = Arc::new(crate::ui::StreamPrinter::new());
let p_text = printer.clone();
let p_think = printer.clone();
let interrupt = Arc::clone(&self.interrupt_flag);
let client = self.client.clone();
let req = initial_request;
let result = runtime.block_on(async move {
client
.create_message_streaming(
req,
move |t| p_text.on_text_delta(t),
move |t| p_think.on_thinking_delta(t),
interrupt,
)
.await
});
printer.finish();
result
};
// Handle API errors, especially those related to invalid images
let response = match response_result {
Ok(resp) => resp,
Err(e) => {
// Try to recover from an image-loading 400 by stripping every
// image block from the conversation and retrying once.
if let SofosError::Api(ref msg) = e {
let is_400_error = msg.contains("400");
let is_image_error = msg.contains("Unable to download")
|| msg.contains("invalid_request_error")
|| msg.contains("verify the URL");
let conversation_has_images =
self.session_state.conversation.messages().iter().any(|m| {
use crate::api::{MessageContent, MessageContentBlock};
if let MessageContent::Blocks { content } = &m.content {
content
.iter()
.any(|b| matches!(b, MessageContentBlock::Image { .. }))
} else {
false
}
});
let has_images = has_pasted_images || conversation_has_images;
if is_400_error && is_image_error && has_images {
println!(
"\n{} One or more image URLs in the conversation could not be loaded by the API\n",
"⚠️ Image loading error:".bright_yellow().bold()
);
// Strip every Image block in place. Surrounding text
// survives so the user's actual prompt isn't lost on
// the retry. A message that was image-only gets
// dropped entirely.
let mut cleaned_messages: Vec<crate::api::Message> = Vec::new();
for m in self.session_state.conversation.messages() {
use crate::api::{Message, MessageContent, MessageContentBlock};
let cleaned = match &m.content {
MessageContent::Blocks { content } => {
let filtered: Vec<MessageContentBlock> = content
.iter()
.filter(|b| !matches!(b, MessageContentBlock::Image { .. }))
.cloned()
.collect();
if filtered.is_empty() {
continue;
}
Message {
role: m.role.clone(),
content: MessageContent::Blocks { content: filtered },
}
}
_ => m.clone(),
};
cleaned_messages.push(cleaned);
}
self.session_state.conversation.clear();
self.session_state
.conversation
.restore_messages(cleaned_messages);
let system_note = if has_pasted_images {
"[SYSTEM ERROR: An image attached to your message could not be loaded and has been removed from the conversation.]"
} else {
"[SYSTEM ERROR: An image from a previous message could not be loaded and has been removed from the conversation. You can continue normally.]"
};
if !self
.session_state
.conversation
.append_text_to_last_user_blocks(system_note.to_string())
{
self.session_state
.conversation
.add_user_message(system_note.to_string());
}
// Backup the cleaned state so a retry failure
// restores the image-free conversation rather than
// the image-laden one that caused the 400.
let conversation_backup =
self.session_state.conversation.messages().to_vec();
let new_request = self.build_initial_request();
println!("{}", "Retrying request without images...".dimmed());
println!();
// Stream the retry with the same interrupt support
// as the initial request so ESC works during the
// second attempt.
let printer = Arc::new(crate::ui::StreamPrinter::new());
let p_text = printer.clone();
let p_think = printer.clone();
let interrupt = Arc::clone(&self.interrupt_flag);
let client = client_for_retry.clone();
let req = new_request;
let retry_result = runtime.block_on(async move {
client
.create_message_streaming(
req,
move |t| p_text.on_text_delta(t),
move |t| p_think.on_thinking_delta(t),
interrupt,
)
.await
});
printer.finish();
match retry_result {
Ok(resp) => resp,
Err(retry_err) => {
self.session_state.conversation.clear();
self.session_state
.conversation
.restore_messages(conversation_backup);
let failure_note = format!(
"[SYSTEM ERROR: Image loading failed and the retry also failed: {}.]",
retry_err
);
if !self
.session_state
.conversation
.append_text_to_last_user_blocks(failure_note.clone())
{
self.session_state
.conversation
.add_user_message(failure_note);
}
return Err(retry_err);
}
}
} else {
// Non-image API error. Append a system note to the
// user turn that triggered the failure rather than
// fabricating an assistant turn (which would make
// the model think it wrote the error string on the
// next turn).
let note = format!(
"[SYSTEM ERROR: API error: {}. The request did not produce a response.]",
msg
);
if !self
.session_state
.conversation
.append_text_to_last_user_blocks(note.clone())
{
self.session_state.conversation.add_user_message(note);
}
return Err(e);
}
} else {
// Non-API error (transport, IO, ...). Same approach as
// the non-image API branch.
let note = format!(
"[SYSTEM ERROR: {}. The request did not produce a response.]",
e
);
if !self
.session_state
.conversation
.append_text_to_last_user_blocks(note.clone())
{
self.session_state.conversation.add_user_message(note);
}
return Err(e);
}
}
};
self.session_state.add_usage(&response.usage);
let mut handler = ResponseHandler::new(
self.client.clone(),
self.tool_executor.clone(),
self.session_state.conversation.clone(),
self.model_config.model.clone(),
self.model_config.max_tokens,
self.model_config.reasoning_effort,
self.available_tools.clone(),
Arc::clone(&self.interrupt_flag),
Arc::clone(&self.steer_buffer),
self.session_state.session_id.clone(),
);
let result = runtime.block_on(handler.handle_response(
response.content,
response.stop_reason,
&mut self.session_state.display_messages,
&mut self.session_state.total_input_tokens,
&mut self.session_state.total_output_tokens,
&mut self.session_state.total_cache_read_tokens,
&mut self.session_state.total_cache_creation_tokens,
&mut self.session_state.peak_single_turn_input_tokens,
));
// Always preserve conversation state so the AI retains context on retry
self.session_state.conversation = handler.conversation().clone();
match result {
Ok(_) => {
println!(
"{}",
UI::format_turn_finished(turn_start.elapsed()).dimmed()
);
Ok(())
}
Err(SofosError::Interrupted) => Ok(()),
Err(e) => {
// Record the system error against the conversation so the
// model sees what happened on the next turn, without
// attributing the note to the assistant.
let error_text = format!(
"[System error during processing: {}. Previous actions are preserved above.]",
e
);
let last_role = self
.session_state
.conversation
.messages()
.last()
.map(|m| m.role.as_str());
match last_role {
Some("assistant") => {
self.session_state.conversation.add_user_message(error_text);
}
Some("user") => {
// Append to the existing user turn (typically the
// tool-results message) so we keep the user/
// assistant alternation the providers require and
// never fabricate assistant content.
if !self
.session_state
.conversation
.append_text_to_last_user_blocks(error_text.clone())
{
self.session_state.conversation.add_user_message(error_text);
}
}
_ => {
self.session_state.conversation.add_user_message(error_text);
}
}
Err(e)
}
}
}
}